“I think we got too careless. In a couple of games, especially against Basel at home [drawing 3-3], it was very annoying for us.

“That was the tendency last season. We had the game in our hands and we threw it away. For whatever reason that was, we cannot afford to do that again this season."

Man Utd have a relatively easy group, but Lindegaard insists that every team, even a minnow, represents a challenge that must not be underestimated.

“No matter who you play against in the Champions League, it is a special kind of football, the team you are playing are the champions or among the top three in their respective countries and we have to take every assignment very seriously,” Lindegaard continued.

“We can't afford to make light of anything. I don't know if we were complacent last season but the fact is we didn't go through and we were very disappointed, and we have to make it right."